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Thermoelectric cooling system can be used in many applications. The properties of structured point contact at the cold end affect the performance of thermoelectric cooling. The performance of metal point junctions as a function of tip radius show that the smaller the tip radius, the better the figure of merit. This paper presents the modeling and analysis of the nanotips. Each nanotip will have to carry some fraction of the weight of the thermoelectric material and the silicon slabs. The small apical area of each nanotip causes a very high pressure build up. The device may be loaded externally to ensure proper nanotip and thermoelectric material contact. A deformation of approximately 10 to 15 nm would be ideal. Finite Element Analysis (FEA) needed to be applied to determine how tall each nanotip must be to maximize soft and hard tip contacts. FEA was also needed to approximate the amount of external loading that will be necessary. ANSYS software was used in the modeling and analysis of the nanotips.

Composites with various layings of unidirectional plies in the conditions of a plane stress state are considered. Using the criteria of maximum stresses and Tsai–Wu, their tensile and shear strength is investigated. The dependences of the failure stresses on the direction of loading in polar coordinates are constructed. For comparison, the results of calculations by the finite element method using the ANSYS Mechanical APDL 2020 R2 program are presented.

Insight into the machining mechanism, crack creation and the chip formation in metal vibratory cutting has yet to be carried out for this technique to be used widely and efficiently. The large-scale FEM soft ware, ANSYS, is utilized for the crack creation process and for the quantitative analysis. Contrast and comparison experiments between vibratory and the conventional metal machining is done, revealing a good agreement between the simulation and the experiment and the inborn nature and the principles of the vibratory metal cutting. The fracture impact resistance in the crack tip zone becomes much lower than that in conventional cutting, other conditions being equal. In this case smaller force is required to have deformed the metal plastically and make the fracture occur. Results will be used for the aspects of the basis for workshop operation.

Focused on the differences between theoretical design and the torsional broken conditions in practical of the shearer drum's torque axis, this paper begins with simulating the field situations to paint the torque and the curve of torsion angle when the torque has been broken down. Analysis of the hardness of the fracture, microstructure, chemical composition and the finite element simulation of test procedure can determine specimen materialand calculate the difference between the actual and theoretical calculations breaking torque and finite element simulation values. The results show that, based on the differences by comparing material processing technology to determine the shear strength τ_b, different ratio coefficient k on the result of theoretical design and calculation, it is obtained correction method of the design formula by the analysis theory for modifying parameter and improving the reliability of the shaft torque.

In order to design the piezostack precision jetting dispenser applied to microelectronic packaging, ANSYS was introduced to analyze the characteristics of piezostack actuator and displacement amplifier. Firstly, the performance of the piezostack actuator when voltage increased from 0V to 200V was researched. The displacement amplifier parametric model was established and the structural parameters which define its displacement outputting were also discussed. The research indicates that triangular piece length “L0” and actuators spacing “W0” are the major parameters, the displacement changed greatly with them; but preload “F0” and diameter of bolt “D” are the minor parameters. Based upon above rules, the outputting displacement of displacement amplifier is 317μm by ANSYS simulate analysis. And then, the dynamic performance of the displacement amplifier which produced based on optimization design was tested by laser displacement sensor. The experimental results was very close to transient dynamic simulation, and error just 1.1%, which shown the validity of the simulation model. Furthermore, the experiment indicated that maximum output displacement kept the same when working frequency is between 0Hz and 65Hz, but it will drop down as frequency increase gradually. At the same time, to get the maximal displacement outputting, the controlled interval of signal duty cycle would decrease as working frequency increase.